| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| A Promise for Tomorrow | Paperback | 978-1-4713-0429-3 (1-4713-0429-9) | 2013 |
| A Promise for Tomorrow | Hardcover | 978-1-4713-0428-6 (1-4713-0428-0) | 2012 |
| Time to Say Goodbye | Paperback | 978-1-4084-7763-2 (1-4084-7763-7) | 2010 |